<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>randomNum</title>
    <link rel="stylesheet" href="./css/reset.css">
    <link rel="stylesheet" href="./css/randomNum.css">
</head>
<body>
    <div class="main">
        <div class="main-box">
            <span id="redball"></span>
            <span id="blueball"></span>
        </div>
    </div>
    <button id="btn">摇起来</button>
    <script src="./javascript/randomNum.js"></script>
</body>
</html>